Gil-cup



T. G. PIHLFELDT AND F. HARTUNG.

OIL CUP.

APPLICATION FILED APR.17,1919.

Patented July 27 1920.

- oil.

iippiicaiion ined lip-fn i?.

To all idiom. it yiii/ly concern lle itlnioivn that we, Ti-ioims G. Pint iunior, a citizen of the United. Statesj siding` at (,hicago, in the county of and State oi" illinois.; and FELIX Hiin'ruiui, a subject of Great Britain, residingl at Chiaro, in the county of 'll-ooh and State lliinois` have invented a new and usetlul Improvement in @il-Grups.l ot which. tollowing` a specilication. v

The

n'esent invention relates to an inin provenient in oil-cups7 and :more particularly to that *roe of oil-cups where-in means are provided' :lor the forcible expulsion or' a quantity ot oil. and for the continued slow feeding` oi2 oil vtroni a reservoir nniintained therein.

The invention is fully set forth and e1' plained in connection With the several ei', bodiments thereof illustrated in the aecompanyingr drawings, in Which- Figure l shows in section one torni of construction embodying the invention;

Fig. F2 shows section a modified form of i:onstruction embodying our invention; and

3 illustrates an additional modi ilcatliereto. I

ln the embodiment o' the invention as shown in l, the numeral 5 desi1 is es IT the body of an oil-cup. the lower portion o' which is extended as a substantially cylindrical, threaded nipple 5, a. suitable intermediate squared hexagonal portii'iii 7 being provided to .ta-ilitate the attachment of the eup in desired location. )i ee l here is pro' .ed through the projecting avtaehiir'me is 6 and 7 to permit the enit lnternallyof the cup an upwaroly projecting hess, or cylindrical hodv provided, vviiieh boss extends partially into Specification et' Letters Patent.

'he cui and is spaced from the side Walls l l thereof to provide ar oil reservoir hetu'een l it and th" walls of the cup. The central bore of t boss oi.' projecting meinher 8 forms continuation et that ot the inem bers 6 and 7.

' it upper end. the oil-cup body 5 provided with a plurality or VJ-shaped annular grooves 9 or slight depth7 and in addition a deeper anniV groove l() of 'rec gular erossseetion which is pressed into Cup or so formed as to provide a circular shoulder nea, the top of the cup. ln 'the llatented J lily 27,1920.

1919. Serial No. 290.695.

largergroove 10 a, packing ring 1l, preeralil y of light7 resilient steel, is provided.v

The shallow grooves 9 together with vthe, packing ever, he omitted, eo-aet with the long depending shirt 12 of the cap 13 to form a seal for the oil. This slriitlikeivise protects the eup againstthe entrance oi' dirt, Water, etc. The cap 13 is retained upon the cup by means permitting` a relative movement with respect thereto, said means being illustrated as a rod 1l which is hooked or otherwise attached to an eye 15 riveted to the eup, and which extends downwardly into the central here in the inwardly projecting h 1. and externally projecting members t3 and 7. This rod 14 is providedat its lower end with an eye l5" through which extends a pin 16 which engages the inwardly extending` flanges ot the ring 17. The upper surface of this ring terms a. seat, for a coiled spring` 1S, the other seat of which is formed by the shoulder 19 formed Withring ll, which latter may, hovvin the here of the upwardly projecting boss 8. The nap is thus retained upon the cup and is permitted a relative movement With respect thereto, the. spring 18 tending to hold the cap seated upon the cup. A suitable Washer 13', "for example, of leather, is provided between the edge of the cup and the cap.

ln order to retain a reservoirof oil Within the cup when the latter is positioned upon its sine, a ring 2 formed to provide an internally projecting truncated eolie, is seated upon the upper shoulder formed ivithinthe eup hy the groove' 10. An opening 21 in the al of the Cup, normally covered by the or" the cap, permits the supply of oil to the e up When the cap is partially raised.

To prevent suotion upon the oil in the cup when raising 1 cap, a conical opening 22 is provided in the top of the. cap and is normally olosedghy the plug:y 23 mounted on the light leaf-spring 24C which is riveted to 'top of the .inwardly projecting boss 8 within the cup. 4The annular space surrounding this boss then acts as alreservoir from which a slow feed. through the opening 25 containing the felt plug 26 into the oil exit takes place. It is apparent that the oii supply i o enin 21 ma lbe omitted vand the cu P g y P filled by lifting the cap until its skirt clears the top-of thecup and permits the supply nof oil directly thereinto. f

When the cup is used in the horizontal position, the inwardly projecting conical. Aring 20 acts, together with the inwardly projecting boss 8 at the base of the cup, to main;- -tain an oil reservoir within thecup.

In the modification of the device shown in Fig. 2, the direct pressure of a 'plunger vis utilized'to forcibly expel the oilfrom the cup. In this figure, 35, indicates the body.

of the cup, which is formed with a ,down` wardly projecting stem comprising the threaded portion 36 and the squared or hexagonal' portion 37 and with the inwardly` projecting 'boss 38, which is spaced 4freinJ the walls of the cup 35 to :torni an 'annular.", oil reservoir therein. At its upper end the cup is provided with the shallow V-shfaped grooves 39 and the deeper groove 40 intended for the reception ofA a packing ring-41, if the use of a packingring is found desirable. The cap 42 is provided with an extended skirt 43 which lco-acts with the grooves'il` and the aching ring 41 to form an l*oil seal and which normally covers-the fily `o'fpening 44 formed in the wall of the en. i `The plunger 45 which .reciprccates w''hin the cup, isprovided with an upwardly extending stem 46 which is riveted to the top of the cap 42. A bore 46a extendling from the lowermost point in the cup betweenv the4 upwardly projecting boss 38 and the walls of the cup 35, and containing the felt plug 47, permits of the slow egress of oil from the reservoir in the cup. The upper edge of the body of the cup 35 Vis spun or burred over to forni the seat 48 for the coiled spring 49, the other seat of which is against the upper face of the piston 45 and which tends to force the piston downwardly in the cup.

The present form of construction is operated in substantially the same manner `as that previously described, the cap being lifted so that its skirt and the plunger both clear the lilling opening 44 in order to fiil the cup, and the cap then being forced down, together with the plunger, tdexpel all the oil .in the cup above the upper edge of the inwardly projecting boss 38. lllhe Leef/,ees

oil remaining in the annulaispace surrounding this boss lslowly feeds out through the felt plug'47in the aperture 46% It is readily apparent that. oilhcups constructed in accordance with the present invention may be placed at various necessary points requiring oiling, for instance, on an automobile or a; tractor, and may be fed from a. central oil supply. This is illus trated by Fig. 3 of the drawings, in which 55 indicates an oil-cup substantially identical in construction, with the exception of oil-supplying nieans,'with the cup of l? 1g. 2.A As illustrated in the drawings, the filling opening in the wall of the cup is here ornit-v ted and the following vmechanisrnused to suply lthe'cup with oil.` q Y he externalv screw-threaded portion 56 of the cup isV here provided with a laterally extendin arm 57 having a bore communicating with the oil exit bore of the cup. A coiled spring 58 and a ball-59am inserted n this bore and' coperatewith a seat on the reducing union 60 to forni a ball-check valve which permits the ingress of oil tothe' cup, but prevents egress through this opening. By any suitable system of tubing, illustrated in dotted lines in the drawing, this lateral extension is connectedy with the central supply' of oil, which is iliustrated as a cup 6l provided with a skirted -cap 62 retained i position on'the cuphy spring pressure and provided with a valve 63 to prevent the central oil-cup from becoming air-bound'.

The cup 55 is providedat the end of the screw-threaded extension 56, which commu* nicates with the bearing to he supplied with oil, with. a bali-check 64, which prevents' the suction of oil Afrom the bearing bach: into the cup. a

Although we have described oury invention in connection with certain specific embodiments thereof, itis clearly apparent that the said invention is not limited to the specific forms of construction shown therein, except in so far as such limitations are contained in the accompanying claims.

l. An oil-cup comprising a body formed with external and internal projections having communicating bores forming an oil exit, the internal projection being spaced from the walls of the body of the cup to form an oil reservoir therein, a bore extend ing from said reservoir to the oii exit, a brous plug in said bore and means for eX- erting an expulsive force on the oil in the cup whereby oil above the internal projection may be forced out'through the bore therein.

2. An oil-cup comprising; :i body formed with an oil exit and an internally projectingboss spaced from the body of the cup and having a bore communicating with the oil exit, an internally projecting ange in is in horizontal position, and means permitting passgge of the oil from the reservoir to the oil exit.

3` An oil-cup comprising a body having an oil exit and an internally projecting boss spaced from the walls of said body to form a reservoir, said boss having a bore communicating with the oil exit, a bore being provided in said .body extending from the oil reservoir to the oil exit, the latter bore being provided with a fibrous plug, and a reciprocable cap for said cup capable in its reciprocating movement of exerting pressure upon the oil in the cup.

4. An oil-cup comprising a body having an oil exit and an inwardly projecting boss spaced from the walls of said body to form a reservoir, the boss 4being provided with an opening communicatinvr with the oil exit and the body being provided with an opening extending from the reservoir to the oil exit, a fabric plug in the latter opening, a cap for said cup, said cap being provided with a skirt extending over the body of the cup, the body being provided with a filling opening normaliy covered by the skirt of the cap.

5. An oil-cup comprising a body portion having an outwardly projecting nipple and an inwardly projecting boss spaced from the walls of said body to form a reservoir, the

boss and the nipple being provided with rcommunicating openings forming an oil exit and the body being .provided with an opening extending from the reservoir to the oil exit, a' fabric plug in the latter opening,` 'A

means attached to said nipple for supplying oil through the opening therein when suction is produced in the cup, and means for producing suction and compression in the cup.

'6. An oil-cup comprising a`body-portion having an outwardly projecting nipple and an inwardly projecting boss spaced from the walls of the body to form a reservoir therein, said boss and nipple having communicating openings forming an oil exit and the body portion being provided with an opening extending from the reservoir to theoil exit, a cap fitting over the body portion of the cup, a rod attached to said cap and extending through the oil exit openings, and a coiled' spring seated within said openings and exerting pressure by means ot' said rod on the cap tending to retain it in position.

TH( )MAS (i. IIHLFELDT. FELIX HARTUNG. 

